skins/AknSkins/src/AknsPointerStore.cpp
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     1 /*
       
     2 * Copyright (c) 2004-2008 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  Static interface class for arbitrary data storage
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 #include <coemain.h>
       
    21 
       
    22 #include "AknsCppPreface.h"
       
    23 #include <AknsPointerStore.h>
       
    24 #include "AknsAppSkinInstance.h"
       
    25 
       
    26 AKNS_UNDEFINED_METHOD(AknsPointerStore::AknsPointerStore)
       
    27 
       
    28 // ============================ MEMBER FUNCTIONS ===============================
       
    29 
       
    30 // -----------------------------------------------------------------------------
       
    31 // AknsPointerStore::StorePointerL
       
    32 // -----------------------------------------------------------------------------
       
    33 //
       
    34 AKNS_EXPORTED_METHOD(AknsPointerStore::StorePointerL)
       
    35 EXPORT_C void AknsPointerStore::StorePointerL( const TAny* aKey, TAny* aValue )
       
    36     {
       
    37     CAknsAppSkinInstance* skin = static_cast<CAknsAppSkinInstance*>
       
    38         (CCoeEnv::Static( KAknsSkinInstanceTls ));
       
    39 
       
    40     if( !aValue )
       
    41         {
       
    42         // No need to store NULL value
       
    43         return;
       
    44         }
       
    45 
       
    46     if( !skin )
       
    47         {
       
    48         User::Leave( KErrNotReady );
       
    49         }
       
    50 
       
    51     TAknsPointerStoreEntry entry;
       
    52     TInt index;
       
    53 
       
    54     entry.iKey = reinterpret_cast<TUint>(aKey);
       
    55     if( skin->iPointerStoreList.FindInUnsignedKeyOrder(
       
    56         entry, index ) == KErrNone )
       
    57         {
       
    58         skin->iPointerStoreList[index].iValue = aValue;
       
    59         }
       
    60     else
       
    61         {
       
    62         entry.iValue = aValue;
       
    63         User::LeaveIfError(
       
    64             skin->iPointerStoreList.InsertInUnsignedKeyOrder( entry ) );
       
    65         }
       
    66     }
       
    67 
       
    68 // -----------------------------------------------------------------------------
       
    69 // AknsPointerStore::RetrievePointer
       
    70 // -----------------------------------------------------------------------------
       
    71 //
       
    72 AKNS_EXPORTED_METHOD(AknsPointerStore::RetrievePointer)
       
    73 EXPORT_C TAny* AknsPointerStore::RetrievePointer( const TAny* aKey )
       
    74     {
       
    75     CAknsAppSkinInstance* skin = static_cast<CAknsAppSkinInstance*>
       
    76         (CCoeEnv::Static( KAknsSkinInstanceTls ));
       
    77 
       
    78     if( !skin )
       
    79         {
       
    80         return NULL;
       
    81         }
       
    82 
       
    83     TAknsPointerStoreEntry entry;
       
    84     TInt index;
       
    85 
       
    86     entry.iKey = reinterpret_cast<TUint>(aKey);
       
    87     if( skin->iPointerStoreList.FindInUnsignedKeyOrder(
       
    88         entry, index ) == KErrNone )
       
    89         {
       
    90         return skin->iPointerStoreList[index].iValue;
       
    91         }
       
    92 
       
    93     return NULL;
       
    94     }
       
    95 
       
    96 // -----------------------------------------------------------------------------
       
    97 // AknsPointerStore::RemovePointer
       
    98 // -----------------------------------------------------------------------------
       
    99 //
       
   100 AKNS_EXPORTED_METHOD(AknsPointerStore::RemovePointer)
       
   101 EXPORT_C void AknsPointerStore::RemovePointer( const TAny* aKey )
       
   102     {
       
   103     CAknsAppSkinInstance* skin = static_cast<CAknsAppSkinInstance*>
       
   104         (CCoeEnv::Static( KAknsSkinInstanceTls ));
       
   105 
       
   106     if( !skin )
       
   107         {
       
   108         return;
       
   109         }
       
   110 
       
   111     TAknsPointerStoreEntry entry;
       
   112     TInt index;
       
   113 
       
   114     entry.iKey = reinterpret_cast<TUint>(aKey);
       
   115     if( skin->iPointerStoreList.FindInUnsignedKeyOrder(
       
   116         entry, index ) == KErrNone )
       
   117         {
       
   118         skin->iPointerStoreList.Remove( index );
       
   119         }
       
   120     }
       
   121 
       
   122 //  End of File